code: def __init__(self) -> None:
      self.var = tf.Variable([2.0])
      self.a = A()
  
imports: import copy
  import pickle
  from typing import Any, Type
  import pytest
  import tensorflow
  import tensorflow_probability
  from check_shapes import check_shapes
  from packaging.version import Version
  import gpflow
  from gpflow.base import TensorType
label_desc: Use image node_id 1 to create a new B object from inherited base classes: tf with example: obj = B()